OBD-II code · Chassis
C050C Left Rear Wheel Speed Sensor A Circuit/Open
Open circuit on left-rear WSS A. Wheel-speed signals feed ABS, ESC, traction control, transmission and odometer — a single dropped signal disables all of these safety functions until repaired.
Is it safe to drive with C050C?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyWire broken or connector unplugged
- Less likelyPin pushed back out of connector body
- Less likelyCracked solder joint inside the module or sensor
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Wss Lr, Sensor Wiring
Related codes
- C065FLeft Rear Wheel Speed Sensor B Circuit/Open
- C0509Right Front Wheel Speed Sensor A Circuit High
- C050ARight Front Wheel Speed Sensor A Intermittent/Erratic
- C050BRight Front Wheel Speed Sensor A Correlation
- C050DLeft Rear Wheel Speed Sensor A Range/Performance
- C050ELeft Rear Wheel Speed Sensor A Circuit Low
- C050FLeft Rear Wheel Speed Sensor A Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.